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CN114111954A - Method and system for calculating aquifer replenishment quantity of coal mine underground reservoir - Google Patents

Method and system for calculating aquifer replenishment quantity of coal mine underground reservoir Download PDF

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Publication number
CN114111954A
CN114111954A CN202111375911.9A CN202111375911A CN114111954A CN 114111954 A CN114111954 A CN 114111954A CN 202111375911 A CN202111375911 A CN 202111375911A CN 114111954 A CN114111954 A CN 114111954A
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water
recharge
pumping
corresponding data
amount
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李海祥
曹志国
吴宝杨
张勇
武洋
张保
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China Energy Investment Corp Ltd
National Institute of Clean and Low Carbon Energy
Guoneng Shendong Coal Group Co Ltd
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China Energy Investment Corp Ltd
National Institute of Clean and Low Carbon Energy
Guoneng Shendong Coal Group Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F22/00—Methods or apparatus for measuring volume of fluids or fluent solid material, not otherwise provided for
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm

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Abstract

The invention provides a method and a system for calculating the aquifer replenishment quantity of a coal mine underground reservoir, wherein the method comprises the following steps: drawing water to the colliery underground reservoir, acquire the corresponding data that draws water, the corresponding data that draws water includes: water level difference, water quantity of a recharging mine, water production quantity and water pumping time; injecting water into the coal mine underground reservoir until the water level is restored to the water level before water pumping, and acquiring water injection corresponding data, wherein the water injection corresponding data comprises water level difference, recharge quantity and water injection time; and calculating the stratum seepage water supply amount according to the water pumping corresponding data, the water injection corresponding data and the total water storage amount calculation formula. The invention solves the technical problem of inaccurate calculation of the aquifer supply in the prior art, combines a reservoir pumping test and a water level recovery test, bypasses the reservoir water storage coefficient with strong space variability by recording parameters such as water level difference, recharge mine water quantity, water recovery quantity, pumping time, recharge quantity, water injection time and the like, and directly calculates the aquifer supply.

Description

Method and system for calculating aquifer replenishment quantity of coal mine underground reservoir
Technical Field
The invention relates to the field of coal mines, in particular to a method and a system for calculating the aquifer replenishment quantity of a coal mine underground reservoir.
Background
The coal mine underground reservoir can store a large amount of mine water underground, so that evaporation loss is reduced; the condition of the underground mine water can be accurately measured and controlled, so that the water damage accident of the mine is avoided, and the safety of the mine is ensured; and the water can be supplied to the underground and the ground, so that the problem of water shortage is solved. In the water storage process of the coal mine underground reservoir, water supply mainly comes from mine water recharge and seepage supply of an aquifer. Obtaining the refilling amount of mine water and the supply amount of a water-bearing stratum is an indispensable condition for safe operation of an underground reservoir. At present, the mine water recharge quantity can be obtained through flow recording, the recharge water quantity can also be manually controlled, but the aquifer recharge quantity of the coal mine underground reservoir has no direct and effective calculation method, and the aquifer recharge quantity cannot be manually and accurately regulated.
At present, the water storage coefficient R of an underground reservoir is mostly used for calculating the aquifer replenishment quantity in the reservoir, and the error of the method for calculating the aquifer replenishment quantity by using the water storage coefficient R is overlarge because the method for acquiring the water storage coefficient R of the underground reservoir is quite complex.
Disclosure of Invention
Based on the problems, the invention provides a method and a system for calculating the aquifer replenishment quantity of a coal mine underground reservoir, which solve the technical problem of inaccurate calculation of the aquifer replenishment quantity in the prior art. The method has simple and reliable test process and calculation process, can make up the defect that the supply quantity of the aquifer of the coal mine underground reservoir cannot be calculated, and ensures reservoir regulation and safe operation.
The invention provides a method for calculating the aquifer replenishment quantity of a coal mine underground reservoir, which comprises the following steps:
drawing water to the colliery underground reservoir, acquire the corresponding data that draws water, the corresponding data that draws water includes: water level difference, water quantity of a recharging mine, water production quantity and water pumping time;
injecting water into the coal mine underground reservoir until the water level is restored to the water level before water pumping, and acquiring water injection corresponding data, wherein the water injection corresponding data comprises water level difference, recharge quantity and water injection time;
and calculating the stratum seepage water supply amount according to the water pumping corresponding data, the water injection corresponding data and the total water storage amount calculation formula.
In addition, the step of calculating the stratum seepage replenishment amount according to the pumping corresponding data, the water injection corresponding data and the total water storage amount calculation formula comprises the following steps:
the water storage coefficient x is (amount of water in the recharge mine, rock stratum seepage water supply amount-water production amount) x water pumping time.
In addition, the calculating the stratum seepage replenishment amount according to the pumping corresponding data, the water injection corresponding data and the total water storage amount by the calculation formula further comprises the following steps:
the coal mine underground reservoir floor area x water head x water storage coefficient (recharge quantity + stratum seepage replenishment quantity) x water injection time.
In addition, the equation is solved according to the following two equations to obtain the stratum seepage water replenishment quantity:
the water storage coefficient x is (the amount of water of the recharge mine, the rock stratum seepage water supply amount-the water production amount) x is the water pumping time;
the water storage coefficient (recharge quantity + stratum seepage replenishment quantity) x water injection time;
and (4) the stratum seepage water supply amount is [ pumping time/(pumping time + water injection time) ]/(water production amount-recharge mine water amount-recharge amount x water injection time/pumping time).
And taking the average value of the multiple calculated stratum seepage water supply amounts as the final stratum seepage water supply amount.
The invention also provides a coal mine underground reservoir aquifer replenishment amount calculation system, which comprises:
the water level monitoring device comprises a water outlet pipe, a water injection pipe and a water level monitor for monitoring the water level;
draw water to colliery underground reservoir through the outlet pipe, acquire the corresponding data that draws water, the corresponding data that draws water includes: water level difference, water quantity of a recharging mine, water production quantity and water pumping time;
injecting water into the coal mine underground reservoir through a water injection pipe until the water level is restored to the water level before water pumping, and acquiring water injection corresponding data, wherein the water injection corresponding data comprises water level difference, recharge quantity and water injection time;
and calculating the stratum seepage water supply amount according to the water pumping corresponding data, the water injection corresponding data and the total water storage amount calculation formula.
In addition, the step of calculating the stratum seepage replenishment amount according to the pumping corresponding data, the water injection corresponding data and the total water storage amount calculation formula comprises the following steps:
the water storage coefficient x is (amount of water in the recharge mine, rock stratum seepage water supply amount-water production amount) x water pumping time.
In addition, the calculating the stratum seepage replenishment amount according to the pumping corresponding data, the water injection corresponding data and the total water storage amount by the calculation formula further comprises the following steps:
the coal mine underground reservoir floor area x water head x water storage coefficient (recharge quantity + stratum seepage replenishment quantity) x water injection time.
In addition, the equation is solved according to the following two equations to obtain the stratum seepage water replenishment quantity:
the water storage coefficient x is (the amount of water of the recharge mine, the rock stratum seepage water supply amount-the water production amount) x is the water pumping time;
the water storage coefficient (recharge quantity + stratum seepage replenishment quantity) x water injection time;
and (4) the stratum seepage water supply amount is [ pumping time/(pumping time + water injection time) ]/(water production amount-recharge mine water amount-recharge amount x water injection time/pumping time).
And taking the average value of the multiple calculated stratum seepage water supply amounts as the final stratum seepage water supply amount.
The invention provides a method and a system for calculating the aquifer replenishment quantity of a coal mine underground reservoir, which solve the technical problem of inaccurate calculation of the aquifer replenishment quantity in the prior art. The method has simple and reliable test process and calculation process, can make up the defect that the supply quantity of the aquifer of the coal mine underground reservoir cannot be calculated, and ensures reservoir regulation and safe operation.
Drawings
FIG. 1 is a flow chart of a method for calculating the aquifer replenishment quantity of a coal mine underground reservoir according to one embodiment of the invention;
fig. 2 is a schematic diagram of a coal mine underground reservoir aquifer replenishment quantity calculation system according to an embodiment of the invention.
Detailed Description
The present invention is described in further detail below with reference to specific embodiments and the attached drawings. It is intended that the present invention not be limited to the particular embodiments disclosed, but that the present invention be limited only by the appended claims.
Referring to fig. 1 and 2, the invention provides a method for calculating the aquifer replenishment quantity of a coal mine underground reservoir, which comprises the following steps:
step S001, pumping water to the coal mine underground reservoir, and acquiring corresponding data of pumping water, wherein the corresponding data of pumping water comprises: water level difference, water quantity of a recharging mine, water production quantity and water pumping time;
s002, injecting water into the coal mine underground reservoir until the water level is restored to the water level before water pumping, and acquiring corresponding water injection data, wherein the corresponding water injection data comprises water level difference, recharge quantity and water injection time;
and S003, calculating the stratum seepage water supply amount according to the water pumping corresponding data, the water injection corresponding data and the total water storage amount calculation formula.
In the water storage process of the coal mine underground reservoir, water supply mainly comes from mine water recharge and seepage supply of an aquifer. Obtaining the refilling amount of mine water and the supply amount of a water-bearing stratum is an indispensable condition for safe operation of an underground reservoir. At present, the mine water recharge quantity can be obtained through flow recording, the recharge water quantity can be manually controlled, but the replenishment quantity of a reservoir aquifer does not have a direct and effective calculation method, and the replenishment quantity cannot be manually and accurately regulated.
At present, no relevant literature provides a calculation method for accurately calculating the aquifer replenishment quantity of the coal mine underground reservoir.
The literature, theoretical framework and technical system of coal mine underground reservoirs, refers to a prediction method of total supply amount (recharge amount + aquifer supply amount) of coal mine underground reservoirs. The method establishes a mine water inflow model:
Qwater inflow amount＝aS+bH+C
Q is water inflow in cubic meter per hour; s is the mining area, and the unit is square meter; h is the working face mining height, and the unit is meter; a is a coefficient relating to horizontal permeability; b is a coefficient related to vertical penetration; c is an empirical constant. Here QTotal amount of supply＝QWater inflow amountThe recharging quantity can be controlled and measured, and the supply quantity can pass through QReplenishment of＝QWater inflow amount-QRechargingAnd (6) calculating. The replenishment quantity obtained by the method is a predicted value and is inaccurate.
Another prior art method is: delta VWater (W)＝△hSR(x，y，z，t)＝(QRecharging+QReplenishment of) Δ t, where R is a function of x, y, z, t, but Δ VWater (W)The water storage coefficient R of the reservoir is required to be obtained through calculation, the water storage coefficient R is too complex to obtain, the water storage coefficient R has strong spatial variability and changes along with time and position, and Q is calculated through the water storage coefficient RReplenishment ofThe method of (2) has a large error.
The invention combines the reservoir water pumping test and the water level recovery test, bypasses the reservoir water storage coefficient with strong spatial variability by recording parameters such as water level difference, the recharge mine water quantity, the water recovery quantity, the water pumping time, the recharge quantity, the water injection time and the like, and directly calculates to obtain the aquifer replenishment quantity. The method has simple and reliable test process and calculation process, can make up the defect that the supply quantity of the aquifer of the coal mine underground reservoir cannot be calculated, and ensures reservoir regulation and safe operation.
In step S001, pumping water to the coal mine underground reservoir, and acquiring corresponding data of pumping water, wherein the corresponding data of pumping water comprises: water level difference, water quantity of a recharging mine, water production quantity and water pumping time;
recording initial water level h of coal mine underground reservoir1(ii) a Determining the recharge quantity Q of a reservoirRecharge of mine waterAnd is kept constant; determining reservoir production QWater productionAnd is kept constant; starting timing;
when the water level drops to a predetermined level h2Stopping reservoir mining, recording cut-off time, and determining process time tTime of pumpingDetermining the recharge quantity Q of the reservoirAmount of rechargeKeeping constant;
s002, injecting water into the coal mine underground reservoir until the water level is restored to the water level before water pumping, and acquiring corresponding water injection data, wherein the corresponding water injection data comprises water level difference, recharge quantity and water injection time;
in step S002, the water level is gradually raised, and when the water level is restored to the initial water level h1Recording the cut-off time, determining the recovery process time tTime of water injection；
In step S003, the rock stratum seepage water replenishment amount is calculated according to the water pumping corresponding data, the water injection corresponding data and the total water storage amount calculation formula.
Optionally, the total water storage amount calculation formula is:
the water storage coefficient x is (the amount of water of the recharge mine, the rock stratum seepage water supply amount-the water production amount) x is the water pumping time;
the water storage coefficient (recharge quantity + stratum seepage replenishment quantity) x water injection time;
the insertion coefficients are:
S(h1-h2)R(x，y，z，t)＝(Qrecharging mine water+QReplenishment of-QWater exploitation)tWater pumping
S(h2-h1)R(x，y，z，t)＝(QRecharging+QReplenishment of)tWater injection
Solving an equation according to two formulas to obtain:
the stratum seepage water supply amount is [ pumping time/(pumping time + water injection time) ]/(water extraction amount-recharge mine water amount-recharge amount x water injection time/pumping time);
Qreplenishment of＝[tWater pumping/(tWater pumping+tWater injection)]/(QWater exploitation-QMine water returning to tank-QReturning pottWater injection/tWater pumping)。
Alternatively, the above procedure is repeated three times, the average value is taken, and if the numerical difference is greater than 5%, a fourth test is performed.
The method can avoid the water storage coefficient R of the reservoir and obtain more accurate aquifer supply amount.
The invention only needs to carry out the water pumping test and the water level recovery test on the reservoir, has simple and reliable process, avoids utilizing the water storage coefficient R parameter and has more accurate calculation result.
In one embodiment, the calculating the rock stratum seepage water replenishment amount according to the pumping corresponding data, the flooding corresponding data and the total water storage amount calculation formula includes:
the water storage coefficient x is (amount of water in the recharge mine, rock stratum seepage water supply amount-water production amount) x water pumping time.
The insertion coefficients are:
S(h1-h2)R(x，y，z，t)＝(Qrecharging mine water+QReplenishment of-QWater exploitation)tWater pumping
The stratum seepage water supply amount is expressed by the formula and is prepared for the next calculation.
In one embodiment, the calculating the rock stratum seepage water replenishment amount according to the pumping corresponding data, the flooding corresponding data and the total water storage amount further includes:
the coal mine underground reservoir floor area x water head x water storage coefficient (recharge quantity + stratum seepage replenishment quantity) x water injection time.
The insertion coefficient is:
S(h2-h1)R(x，y，z，t)＝(Qrecharging+QReplenishment of)tWater injection
The stratum seepage water supply amount is expressed by the formula and is prepared for the next calculation.
In one embodiment, the formation-permeable makeup amount is solved according to the following two equations:
the water storage coefficient x is (the amount of water of the recharge mine, the rock stratum seepage water supply amount-the water production amount) x is the water pumping time;
the water storage coefficient (recharge quantity + stratum seepage replenishment quantity) x water injection time;
and (4) the stratum seepage water supply amount is [ pumping time/(pumping time + water injection time) ]/(water production amount-recharge mine water amount-recharge amount x water injection time/pumping time).
The insertion coefficients are:
S(h1-h2)R(x，y，z，t)＝(Qrecharging mine water+QReplenishment of-QWater exploitation)tWater pumping
S(h2-h1)R(x，y，z，t)＝(QRecharging+QReplenishment of)tWater injection
Solving an equation according to two formulas to obtain:
Qreplenishment of＝[tWater pumping/(tWater pumping+tWater injection)]/(QWater exploitation-QMine water returning to tank-QReturning pottWater injection/tWater pumping)。
According to the embodiment, only the water pumping test and the water level recovery test are needed to be carried out on the reservoir, the process is simple and reliable, the water storage coefficient R parameter is avoided being utilized, and the calculation result is more accurate.
In one embodiment, the final makeup amount is determined by averaging the calculated makeup amounts. And taking the average value of the multiple calculated rock stratum water seepage replenishment quantities as the final rock stratum water seepage replenishment quantity in order to obtain an accurate result and reduce errors. Alternatively, the above procedure is repeated three times, the average value is taken, and if the numerical difference is greater than 5%, a fourth test is performed.
Referring to fig. 1 and 2, the invention provides a coal mine underground reservoir aquifer replenishment quantity calculation system, which comprises:
the water level monitoring device comprises a water outlet pipe, a water injection pipe and a water level monitor for monitoring the water level;
draw water to colliery underground reservoir through the outlet pipe, acquire the corresponding data that draws water, the corresponding data that draws water includes: water level difference, water quantity of a recharging mine, water production quantity and water pumping time;
injecting water into the coal mine underground reservoir through a water injection pipe until the water level is restored to the water level before water pumping, and acquiring water injection corresponding data, wherein the water injection corresponding data comprises water level difference, recharge quantity and water injection time;
and calculating the stratum seepage water supply amount according to the water pumping corresponding data, the water injection corresponding data and the total water storage amount calculation formula.
In the system, 1 is a peripheral aquifer, 2 is a subsidence area, 3 is an overlying aquifer, 4 is a coal pillar, 5 is a water injection pipe, 6 is a water level monitor, 7 is an artificial dam body, 8 is a coal mine underground reservoir, 9 is a water outlet pipe, 10 is aquifer leakage supply, 11 is an initial water level before a pumping test and a water level after a water level recovery test are recovered, and 12 is a pumping test stop water level and a water level recovery test initial water level.
In one embodiment, the calculating the rock stratum seepage water replenishment amount according to the pumping corresponding data, the flooding corresponding data and the total water storage amount calculation formula includes:
the water storage coefficient x is (amount of water in the recharge mine, rock stratum seepage water supply amount-water production amount) x water pumping time.
The insertion coefficients are:
S(h1-h2)R(x，y，z，t)＝(Qrecharging mine water+QReplenishment of-QWater exploitation)tWater pumping
The stratum seepage water supply amount is expressed by the formula and is prepared for the next calculation.
In one embodiment, the calculating the rock stratum seepage water replenishment amount according to the pumping corresponding data, the flooding corresponding data and the total water storage amount further includes:
the coal mine underground reservoir floor area x water head x water storage coefficient (recharge quantity + stratum seepage replenishment quantity) x water injection time.
The insertion coefficient is:
S(h2-h1)R(x，y，z，t)＝(Qrecharging+QReplenishment of)tWater injection
The stratum seepage water supply amount is expressed by the formula and is prepared for the next calculation.
In one embodiment, the formation-permeable makeup amount is solved according to the following two equations:
the water storage coefficient x is (the amount of water of the recharge mine, the rock stratum seepage water supply amount-the water production amount) x is the water pumping time;
the water storage coefficient (recharge quantity + stratum seepage replenishment quantity) x water injection time;
and (4) the stratum seepage water supply amount is [ pumping time/(pumping time + water injection time) ]/(water production amount-recharge mine water amount-recharge amount x water injection time/pumping time).
The insertion coefficients are:
S(h1-h2)R(x，y，z，t)＝(Qrecharging mine water+QReplenishment of-QWater exploitation)tWater pumping
S(h2-h1)R(x，y，z，t)＝(QRecharging+QReplenishment of)tWater injection
Solving an equation according to two formulas to obtain:
Qreplenishment of＝[tWater pumping/(tWater pumping+tWater injection)]/(QWater exploitation-QMine water returning to tank-QReturning pottWater injection/tWater pumping)。
According to the embodiment, only the water pumping test and the water level recovery test are needed to be carried out on the reservoir, the process is simple and reliable, the water storage coefficient R parameter is avoided being utilized, and the calculation result is more accurate.
In one embodiment, the final makeup amount is determined by averaging the calculated makeup amounts. And taking the average value of the multiple calculated rock stratum water seepage replenishment quantities as the final rock stratum water seepage replenishment quantity in order to obtain an accurate result and reduce errors. Alternatively, the above procedure is repeated three times, the average value is taken, and if the numerical difference is greater than 5%, a fourth test is performed.
The foregoing is considered as illustrative only of the principles and preferred embodiments of the invention. It should be noted that, for those skilled in the art, several other modifications can be made on the basis of the principle of the present invention, and the protection scope of the present invention should be regarded.

Claims (10)

1.一种煤矿地下水库含水层补给量计算方法，其特征在于，包括：1. a coal mine underground reservoir aquifer recharge calculation method, is characterized in that, comprises: 对煤矿地下水库抽水，获取抽水对应数据，抽水对应数据包括：水位差、回灌矿井水量、水开采量、抽水时间；To pump water from underground reservoirs of coal mines, obtain the corresponding data of pumping. The corresponding data of pumping include: water level difference, recharge mine water volume, water extraction volume, and pumping time; 向煤矿地下水库注水至水位恢复到抽水前水位，获取注水对应数据，注水对应数据包括水位差、回灌量、注水时间；Inject water into the underground reservoir of the coal mine until the water level returns to the water level before pumping, and obtain the corresponding data of water injection. The corresponding data of water injection include water level difference, recharge amount, and water injection time; 根据抽水对应数据、注水对应数据和储水总量计算公式求出岩层渗水补给量。According to the corresponding data of water pumping, the corresponding data of water injection and the calculation formula of the total water storage, the water seepage replenishment amount of the rock formation is obtained. 2.根据权利要求1所述的煤矿地下水库含水层补给量计算方法，其特征在于，2. The method for calculating the aquifer recharge amount of a coal mine underground reservoir according to claim 1, characterized in that, 所述根据抽水对应数据、注水对应数据和储水总量计算公式求出岩层渗水补给量包括：The calculation of the water seepage replenishment amount of the rock formation according to the corresponding data of pumping, the corresponding data of water injection and the calculation formula of the total amount of water storage includes: 煤矿地下水库底面积x水位差x储水系数＝(回灌矿井水量+岩层渗水补给量-水开采量)x抽水时间。Bottom area of coal mine underground reservoir x water level difference x water storage coefficient = (recharge mine water volume + rock seepage water supply volume - water extraction volume) x pumping time. 3.根据权利要求2所述的煤矿地下水库含水层补给量计算方法，其特征在于，3. The method for calculating the recharge amount of aquifer in a coal mine underground reservoir according to claim 2, characterized in that, 所述根据抽水对应数据、注水对应数据和储水总量计算公式求出岩层渗水补给量还包括：The calculation of the water seepage replenishment amount of the rock formation according to the corresponding data of pumping, the corresponding data of water injection and the calculation formula of the total amount of water storage further includes: 煤矿地下水库底面积x水位差x储水系数＝(回灌量+岩层渗水补给量)x注水时间。Bottom area of coal mine underground reservoir x water level difference x water storage coefficient = (recharge amount + rock seepage replenishment amount) x water injection time. 4.根据权利要求3所述的煤矿地下水库含水层补给量计算方法，其特征在于，4. The method for calculating the aquifer recharge amount of a coal mine underground reservoir according to claim 3, characterized in that, 根据以下两个等式进行方程求解得到岩层渗水补给量：Solve the equation according to the following two equations to obtain the water seepage recharge in the rock formation: 煤矿地下水库底面积x水位差x储水系数＝(回灌矿井水量+岩层渗水补给量-水开采量)x抽水时间；Bottom area of coal mine underground reservoir x water level difference x water storage coefficient = (recharge mine water volume + rock seepage water supply volume - water extraction volume) x pumping time; 煤矿地下水库底面积x水位差x储水系数＝(回灌量+岩层渗水补给量)x注水时间；Bottom area of coal mine underground reservoir x water level difference x water storage coefficient = (recharge amount + rock stratum seepage replenishment amount) x water injection time; 岩层渗水补给量＝[抽水时间/(抽水时间+注水时间)]/(水开采量-回灌矿井水量-回灌量x注水时间/抽水时间)。The amount of seepage water supply in the rock formation = [water pumping time/(water pumping time + water injection time)]/(water extraction volume-recharge mine water volume-recharge volume x water injection time/water pumping time). 5.根据权利要求1-4任一项所述的煤矿地下水库含水层补给量计算方法，其特征在于，5. The method for calculating the aquifer recharge amount of a coal mine underground reservoir according to any one of claims 1-4, characterized in that: 取多次计算出的岩层渗水补给量的平均值作为最终的岩层渗水补给量。The average value of the water seepage replenishment amount of the rock formation calculated for many times is taken as the final water seepage replenishment amount of the rock formation. 6.一种煤矿地下水库含水层补给量计算系统，其特征在于，包括：6. A coal mine underground reservoir aquifer recharge calculation system, characterized in that, comprising: 出水管、注水管和用于监测水位的水位监测仪；Outlet pipes, water injection pipes and water level monitors for monitoring water levels; 通过出水管对煤矿地下水库抽水，获取抽水对应数据，抽水对应数据包括：水位差、回灌矿井水量、水开采量、抽水时间；Pump water from the underground reservoir of the coal mine through the water outlet pipe to obtain the corresponding data of the pumping. 通过注水管向煤矿地下水库注水至水位恢复到抽水前水位，获取注水对应数据，注水对应数据包括水位差、回灌量、注水时间；Water is injected into the underground reservoir of the coal mine through the water injection pipe until the water level is restored to the water level before pumping, and the corresponding data of water injection is obtained. The corresponding data of water injection include water level difference, recharge amount, and water injection time; 根据抽水对应数据、注水对应数据和储水总量计算公式求出岩层渗水补给量。According to the corresponding data of water pumping, the corresponding data of water injection and the calculation formula of the total water storage, the water seepage replenishment amount of the rock formation is obtained. 7.根据权利要求6所述的煤矿地下水库含水层补给量计算系统，其特征在于，7. The system for calculating the recharge amount of aquifers in coal mine underground reservoirs according to claim 6, characterized in that: 所述根据抽水对应数据、注水对应数据和储水总量计算公式求出岩层渗水补给量包括：The calculation of the water seepage replenishment amount of the rock formation according to the corresponding data of pumping, the corresponding data of water injection and the calculation formula of the total amount of water storage includes: 煤矿地下水库底面积x水位差x储水系数＝(回灌矿井水量+岩层渗水补给量-水开采量)x抽水时间。Bottom area of coal mine underground reservoir x water level difference x water storage coefficient = (recharge mine water volume + rock seepage water supply volume - water extraction volume) x pumping time. 8.根据权利要求7所述的煤矿地下水库含水层补给量计算系统，其特征在于，8. The system for calculating the recharge amount of aquifers in coal mine underground reservoirs according to claim 7, wherein: 所述根据抽水对应数据、注水对应数据和储水总量计算公式求出岩层渗水补给量还包括：The calculation of the water seepage replenishment amount of the rock formation according to the corresponding data of pumping, the corresponding data of water injection and the calculation formula of the total amount of water storage further includes: 煤矿地下水库底面积x水位差x储水系数＝(回灌量+岩层渗水补给量)x注水时间。Bottom area of coal mine underground reservoir x water level difference x water storage coefficient = (recharge amount + rock seepage replenishment amount) x water injection time. 9.根据权利要求8所述的煤矿地下水库含水层补给量计算系统，其特征在于，9 . The calculation system for the recharge of aquifers in coal mine underground reservoirs according to claim 8 , wherein: 10 . 根据以下两个等式进行方程求解得到岩层渗水补给量：Solve the equation according to the following two equations to obtain the water seepage recharge in the rock formation: 煤矿地下水库底面积x水位差x储水系数＝(回灌矿井水量+岩层渗水补给量-水开采量)x抽水时间；Bottom area of coal mine underground reservoir x water level difference x water storage coefficient = (recharge mine water volume + rock seepage water supply volume - water extraction volume) x pumping time; 煤矿地下水库底面积x水位差x储水系数＝(回灌量+岩层渗水补给量)x注水时间；Bottom area of coal mine underground reservoir x water level difference x water storage coefficient = (recharge amount + rock stratum seepage replenishment amount) x water injection time; 岩层渗水补给量＝[抽水时间/(抽水时间+注水时间)]/(水开采量-回灌矿井水量-回灌量x注水时间/抽水时间)。The amount of seepage water supply in the rock formation = [water pumping time/(water pumping time + water injection time)]/(water extraction volume-recharge mine water volume-recharge volume x water injection time/water pumping time). 10.根据权利要求6-9任一项所述的煤矿地下水库含水层补给量计算系统，其特征在于，10. The calculation system for aquifer recharge in a coal mine underground reservoir according to any one of claims 6-9, characterized in that: 取多次计算出的岩层渗水补给量的平均值作为最终的岩层渗水补给量。The average value of the water seepage replenishment amount of the rock formation calculated for many times is taken as the final water seepage replenishment amount of the rock formation.
CN202111375911.9A 2021-11-19 2021-11-19 Method and system for calculating aquifer replenishment quantity of coal mine underground reservoir Pending CN114111954A (en)

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